.main {
    margin-top: 1rem;
    width: 100%;
    height: calc(100% - 7rem);
    background-color: #688dbe;
    padding: 2rem;
    box-sizing: border-box;
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    grid-column-gap: 2rem;
}